How did Roman engineers build the aqueduct at Segovia?
Segovia (Spain) Segovia is well known for the magnificent aqueduct bridge in the centre of town, one of the largest and best preserved in the Roman empire. The Roman aqueduct channel of Segovia has a total length of 15 km from its source in the mountains to the Alcazar on the NW tip of the city, and the aqueduct bridge is only a small part of this structure. Segovia is special not only because of the artistic marvel of the aqueduct bridge and medieval buildings, but also because of its setting in the wide open fields of Castille at the foot of the mountains, and the possibilities this gives to appreciate the layout of its aqueduct. The aqueduct obtained its water not from springs, but from a small river in the Sierra de Guadarrama. Although the Romans favoured springs for aqueduct water because the risk of contamination is less, this is not everywhere possible because of the local geology. Large springs are most common in limestone areas, and the mountains surrounding Segovia are mostl
